1245144453 has 16 divisors (see below), whose sum is σ = 1898098176. Its totient is φ = 711235440.

The previous prime is 1245144451. The next prime is 1245144469. The reversal of 1245144453 is 3544415421.

It is a happy number.

It is not a de Polignac number, because 1245144453 - 2¹ = 1245144451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245144451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52218 + ... + 72228.

It is an arithmetic number, because the mean of its divisors is an integer number (118631136).

Almost surely, 2^1245144453 is an apocalyptic number.

It is an amenable number.

1245144453 is a deficient number, since it is larger than the sum of its proper divisors (652953723).

1245144453 is a wasteful number, since it uses less digits than its factorization.

1245144453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22984.

The product of its digits is 38400, while the sum is 33.

The square root of 1245144453 is about 35286.6044413457. The cubic root of 1245144453 is about 1075.8207405916.

Adding to 1245144453 its reverse (3544415421), we get a palindrome (4789559874).

The spelling of 1245144453 in words is "one billion, two hundred forty-five million, one hundred forty-four thousand, four hundred fifty-three".